TWI845727B - Tool information setting device and working machine - Google Patents

Abstract

The subject of the present invention is to easily and appropriately set the torque limit value for the tool in the tool holder installed on the turntable corresponding to the turntable code according to the turntable code recorded in the processing formula. The present invention provides a torque limit value setting device (4) comprising: a first memory unit (34) storing a tool holder code and a corresponding torque limit value as tool information; and a second memory unit (35) storing a turntable surface code and a corresponding tool holder code; and a torque limit value setting unit (30) which, when selecting a predetermined tool (12) by using the turntable surface code installed on the turntable (8), obtains the tool holder code from the second memory unit (35) according to the turntable surface code recorded in the machining formula, and obtains the torque limit value of the tool from the first memory unit (34) according to the obtained tool holder code as a tool information setting unit.

Description

Tool information setting device and working machine

The present invention discloses a tool information setting device and a working machine.

In the past, when various tools are installed on each of the multiple turret surfaces provided on the circumference of a turret in response to processing and clamping various tool holders, there is a known turret tool selection instruction method for selecting the necessary tool for a given processing based on the turret surface code of the turret surface (for example, please refer to Patent Document 1). [Prior Technical Document] [Patent Document]

[Patent Document 1] Japanese Patent No. 6254153

[The problem the invention is trying to solve]

However, each tool holder has predetermined tool information such as torque limit value when processing by the installed tool due to the structure, etc. When the necessary tool is selected during processing by the rotary table tool selection command method, the processing performed by the selected tool must be performed according to the tool information such as torque limit value corresponding to the tool holder installed with the tool.

Therefore, in the development of technology, there is an urgent need for a technology that can easily and appropriately perform the following processing: the tool corresponding to the processing can be easily and freely selected, and the processing can be performed based on tool information such as the torque limit value suitable for the selected tool. [Technical means to solve the problem]

The tool information setting device disclosed in this disclosure for solving the above-mentioned problem is a tool information setting device for setting tool information of tools installed by various tool holders for processing on each of the plurality of turntable surfaces provided on the periphery of the turntable, and is characterized by having: a first memory unit, which stores a tool holder code for identifying the tool holder and the tool information of the tool to be installed on the corresponding tool holder; and a second memory unit, which stores a tool holder code for identifying the tool holder; The turntable code of the turntable and the tool holder code of the tool holder to be installed on the turntable; and The tool information setting unit, when selecting the predetermined tool by the turntable code of the installed turntable, obtains the tool holder code from the second memory unit according to the turntable code recorded in the processing formula, and obtains the tool information of the tool from the first memory unit according to the obtained tool holder code. [Effect of the invention]

According to the present disclosure, based on the turret surface code recorded in the machining formula, tool information such as torque limit value can be easily and appropriately set for the tool that is mounted on the turret surface corresponding to the turret surface code through the tool holder.

Thereby, processing performed by the tool according to tool information such as appropriate processing torque that does not exceed the torque limit value can be easily and appropriately performed.

(First implementation form)

Hereinafter, a torque limit value setting device as a tool information setting device and a working machine of the torque limit value setting device in the first embodiment will be described with reference to the drawings. FIG. 1 is a schematic three-dimensional diagram showing a rotary tool table of an automatic lathe as a working machine having a torque limit value setting device in the first embodiment. FIG. 2 is a schematic plan view of the rotary table. FIG. 3 is a functional block diagram of a control device having a torque limit value setting device (tool information setting device).

As shown in the drawings, the automatic lathe 1 includes: a machining body 2 for machining a workpiece W, a control device 3 for controlling the motion of the machining body 2, and a torque limit value setting device (tool information setting device) 4 for setting a torque limit value as tool information. In the present embodiment, the torque limit value setting device 4 is provided in the control device 3.

The processing body 2 includes a spindle 5 as a workpiece holding portion for holding a workpiece W, and a turret tool post 6. The spindle 5 is pivoted to the spindle table so as to be rotatably driven about the axis C0. The center axis C of the turret tool post 6 is arranged in parallel with the axis C0 (Z-axis direction in FIG. 1) of the spindle 5. The turret tool post 6 includes a tool post body 7, and a turret 8 supported by the tool post body 7 so as to be rotatably driven about the center axis C. The tool post body 7 is arranged to be movable in the Z-axis direction, which is the direction of the axis C0 of the spindle 5, and in the X-axis direction and the Y-axis direction which are orthogonal to the Z-axis direction.

The turntable 8 can be moved in the Z-axis direction, the X-axis direction, and the Y-axis direction by moving the tool rest body 7. As shown in FIG. 2, the turntable 8 of this embodiment is in the shape of a regular decagon when viewed from above, and a plurality of turntable surfaces 10 are provided on the outer peripheral surface. Furthermore, the turntable 8 is not limited to being a regular decagon when viewed from above, and a plurality of turntable surfaces 10 can be provided, and it can also be a polygon other than a decagon, and it can also be a shape other than a polygon. Various forms of tool holders 11 can be freely installed on each turntable surface 10. On each tool holder 11, a predetermined tool 12 for processing is installed via a mounting portion provided on the tool holder 11.

The processing body 2 is provided with a driving mechanism 17 which is composed of a spindle motor 13 for rotationally driving the spindle 5, a turntable moving motor 14 for moving and driving the turntable tool table 6, a turntable rotating motor 15 for rotationally driving the turntable 8, and a tool driving motor 16 for rotating a tool 12 of a predetermined tool holder 11 mounted on the turntable surface 10.

The rotation drive of the spindle 5, the rotation drive of the turntable 8, and the movement drive of the turntable 8 (tool stage body 7) are controlled by the control device 3 constituted by the NC device. As shown in FIG. 3, the control device 3 is connected to an operation panel 20 for operating the control device 3. The operation panel 20 is provided with various switches 21, a monitor 22 as a display device, and a menu switch 24 corresponding to a menu bar 23 displayed on the monitor 22.

The control device 3 is composed of a CPU, a memory such as a ROM or a ROM, and a storage device such as a HDD. A processing formula is pre-inputted into the control device 3. The input processing formula is stored in the memory or a processing formula storage unit 25 provided in the storage device. Furthermore, the control device 3 is provided with a motor control unit 26 for controlling the drive mechanism 17 such as the spindle motor 13, the turntable moving motor 14, the turntable rotating motor 15, and the tool driving motor 16.

In the automatic lathe 1, the motor control unit 26 of the control device 3 controls the driving mechanism 17 to rotate and move the turntable 8 and rotate the tool 12 according to the processing formula of the processing formula storage unit 25. In this way, the tool 12 performs automatic predetermined processing on the material clamped on the spindle 5. The tool 12 required for processing is selected by the rotation and movement of the turntable 8. The processing performed by the tool 12 is performed according to the torque limit value set by the torque limit value setting device 4.

As shown in FIG. 2, each turntable surface 10 of the turntable 8 is pre-assigned with a T-code (T20 to T29 in the present embodiment) for identifying the turntable surface 10. Each T-code is set in a non-repetitive manner. In addition, for each tool 12 mounted on each tool holder 11 mounted on each turntable surface 10, a deviation value corresponding to the deviation code for correcting the wear of each tool 12 is pre-assigned and stored in a memory or a storage device.

Furthermore, the correction value of each tool 12 to be mounted on the tool holder 11 capable of mounting a plurality of tools 12 is allocated in correspondence with the coordinate correction value code and is stored in the memory or the storage device. In the coordinate correction value code, the correction value for correcting the position of the tool 12 to which the coordinate correction value code is set, for the coordinate position envisioned in the machining formula, is stored in correspondence.

The control device 3 is configured to select a predetermined tool 12 by a tool selection code arranged in series according to the T-code of the tool 12, the deviation code of the tool 12, and the coordinate correction value code. For example, a tool 12 installed on the turntable code T20 and having the deviation code 00 set as the coordinate correction value code R1 is selected by recording the tool selection code T2000R1 as the command code of the tool selection command in the machining formula.

In this case, the control device 3 (motor control unit 26) controls the turntable rotation motor 15 to rotate the turntable 8. Next, the control device 3 calculates the predetermined angle position of the turntable surface 10 with T-code T20 and calculates the selected tool 12, and corrects the position of the tool 12 by the deviation value of the deviation code 00. At the same time as this correction, the control device 3 sets the coordinate system of the X-axis, Y-axis, and Z-axis according to the preset correction value for the coordinate correction value code R1. In this way, by controlling the turntable movement motor 14 with the movement command of the X-axis, Y-axis, and Z-axis, the turntable 8 corrects and moves the position of the selected tool 12, and the workpiece W can be processed by the tool 12.

On the other hand, each tool holder 11 installed on each turntable surface 10 is pre-set with: a holder code as a tool holder code for identifying each tool holder 11 and a torque limit value of each tool holder 11 (please refer to Figure 4). The holder code is, for example, FKL654, GHP321, DCC345, ESS987, etc. The torque limit value is, for example, 100%, 200%, 300%, 400%, etc.

In this embodiment, the tool information setting device functions as a torque limit value setting device 4. As shown in FIG. 3 , the torque limit value setting device 4 includes a torque limit value setting unit 30 for setting a torque limit value, a screen display unit 31 for generating various screens and displaying them on the monitor 22, a link unit 32 for matching a T-code with a holder code, and a memory unit 33. The memory unit 33 is mainly composed of a memory device such as a hard disk (HDD) or a memory, and includes a first memory unit 34 and a second memory unit 35.

FIG. 4 is a diagram showing the relationship between the table structure of the database stored in the first memory section 34 and the second memory section 35 and the T-code of the processing formula. As shown in FIG. 4, the first memory section 34 stores a holder information table 34a that can correspond the holder codes of a plurality of tool holders 11 that can be mounted on each turntable surface 10 to the torque limit value. The second memory section 35 stores a processing data table 35a that can set the T-code to the holder code of the tool holder 11 mounted on the turntable surface 10 corresponding to each T-code.

The data in the first memory section 34 and the second memory section 35 may be pre-stored at the time of factory shipment or initial setting, or may be arbitrarily set by the operator who operates the automatic lathe 1 from the operation panel 20. In the present embodiment, the first memory section 34 pre-stores a holder information table 34a, and the processing data table 35a in the second memory section 35 can be arbitrarily set by the operator who operates the automatic lathe 1 from the operation panel 20.

For this setting, the screen display unit 31 displays the tool holder selection screen 40 shown in FIG. 5 on the monitor 22. In the left column of the tool holder selection screen 40, a T-code display area 41 for displaying the T-code of the turntable surface 10 and a holder selection area 42 for selecting the tool holder 11 are provided for each T-code (each turntable surface 10). In the right column of the tool holder selection screen 40, in the holder selection area 42, a holder information display area 43 for displaying detailed information such as the holder code or image of the selected tool holder 11 is provided. In the lower column of the tool holder selection screen 40, a menu bar 44 for selecting and displaying processing information or holder information is provided.

The operator can select the desired tool holder 11 to be mounted on the turntable surface 10 in the holder information display area 43 of the tool holder selection screen 40. Therefore, the operator can easily and freely set the holder code and correspond it to the T-code.

The linking unit 32 stores the combination of the T-code and the holder code set on the tool holder selection screen 40 in the processing data table 35 a of the second storage unit 35 .

The torque limit value setting unit 30 obtains the holder code from the second memory unit 35 in a manner of selecting a predetermined tool 12 according to the tool selection code T-code recorded in the machining formula, and obtains the torque limit value from the first memory unit 34 according to the obtained holder code. The torque limit value setting unit 30 transmits the obtained torque limit value to the motor control unit 26 as a torque limit parameter of the machining torque.

The motor control unit 26 of the control device 3 rotates the turntable 8 according to the T-code recorded in the machining formula, obtains the turntable surface 10 corresponding to the T-code, and selects the predetermined tool 12 installed on the calculated turntable surface 10. The motor control unit 26 controls the way in which the workpiece W is machined by the tool 12 within the range of the appropriate machining torque that does not exceed the torque limit value according to the torque limit value (torque limit parameter) received from the torque limit value setting device 4.

Hereinafter, an example of the operation in the automatic lathe 1 having the torque limit value setting device 4 of the above-mentioned structure will be described with reference to the flowchart of Fig. 6. As mentioned above, the holder information table 34a of the first memory section 34 also pre-memorizes: the holder codes of the plurality of tool holders 11 that can be mounted on the turntable surface 10, and the torque limit values of the tool holders 11 corresponding to the respective holder codes.

The operator or the like inserts the tool 12 required for processing into the predetermined tool holder 11 and installs it on each turntable surface 10 of the turntable 8. Next, the operator or the like operates the operation panel 20 to instruct the control device 3 to display the tool holder selection screen 40.

When receiving the instruction, in step S1, the screen display unit 31 displays the tool holder selection screen 40 on the monitor 22. In the tool holder selection screen 40, the operator sets the holder code of the tool holder 11 installed on the turntable surface 10 for the turntable surface code of each turntable surface 10. In addition, in the present embodiment, although step S1 is executed after the tool holder 11 is installed on the turntable surface 10, it is not limited to this order. The operator can also install the tool holder 11 on the turntable surface 10 according to the setting information of the tool holder 11 after executing step S1.

When the operator etc. completes the setting operation on the tool holder selection screen 40, the combination of the turntable code and the holder code set corresponding to the turntable code is notified to the contact unit 32. The contact unit 32 obtains the combination of the turntable code and the holder code (step S2), and stores it in the processing data table 35a of the second memory unit 35 (step S3).

Next, when the operator operates the operation panel 20 and gives a machining start instruction, the control device 3 receives the machining start instruction and starts executing the machining formula in the machining formula storage unit 25 (step S4). Specifically, the control device 3 sequentially calls out the machining instructions (command codes) recorded in the machining formula and executes them, so that the machining body 2 performs machining operations on the workpiece W.

In the process of executing the processing instruction, the control device 3 reads the T-code of the turntable surface 10 from the processing formula according to the selection instruction (command code) of the predetermined tool 12 used during processing (step S5). In this way, according to the T-code, the motor control unit 26 of the control device 3 drives the turntable rotation motor 15 and obtains the turntable surface 10 (step S6). For example, in the example shown in Figure 4, the control device 3 reads "T21" as the T-code from the processing formula. The turntable surface 10 corresponding to "T21" is obtained by the motor control unit 26, and the tool 12 is installed in the tool holder 11 clamped by T21 and the deviation value of the deviation code and the correction value of the coordinate correction value code specified together.

At this time, since the torque limit value for machining by the obtained tool 12 is obtained, the torque limit value setting unit 30 obtains the retainer code corresponding to the T-code from the machining data table 35a of the second memory unit 35 by the instruction from the control device 3 (step S7). In FIG. 4, the torque limit value setting unit 30 obtains "ESS987" corresponding to "T21". Next, the torque limit value setting unit 30 obtains the torque limit value corresponding to the retainer code from the retainer information table 34a of the first memory unit 34 according to the retainer code obtained in step S7, and transmits it to the motor control unit 26 (step S8). More specifically, as shown in FIG. 4 , the torque limit value setting unit 30 obtains "400%" as the torque limit value, and writes "400" (torque limit parameter) to the address "#12345" on the memory.

The motor control unit 26 reads the torque limit parameter "400" from the address "#12345" and receives it as the torque limit value from the torque limit value setting unit 30. The motor control unit 26 controls the drive mechanism 17 so that the tool 12 processes the workpiece W with an appropriate processing torque that does not exceed the torque limit value (step S9).

(Second embodiment) Next, the second embodiment is described with respect to the automatic lathe having a torque limit value setting device as a tool information setting device and a torque limit value setting device as a working machine. The torque limit value setting device 4 and the automatic lathe 1 in the second embodiment have the same basic structure as the torque limit value setting device 4 and the automatic lathe 1 in the first embodiment shown in FIG. 1, except that they are further provided with a third memory unit 36 indicated by a dotted line in FIG. 3. Therefore, the following mainly describes the structure that is different from the first embodiment, and the detailed description of the structure that is the same as the first embodiment is omitted.

FIG. 7 is a diagram showing the relationship between the table structure of the database stored in the first memory unit 34, the second memory unit 35, and the third memory unit 36 and the T-code of the processing formula. As shown in FIG. 7, in the first memory unit 34, as in the first embodiment, a retainer information table 34a that makes the retainer code and the torque limit value correspond is pre-stored. In the second memory unit 35, as in the first embodiment, a processing data table 35a that makes the T-code and the retainer code correspond is stored. In the second embodiment, the combination of the T-code and the retainer code stored in the second memory unit 35 is also set from the tool holder selection screen 40.

The third memory unit 36 stores the torque limit value corresponding to the T-code based on the data stored in the first and second memory units 34 and 35. In the second embodiment, the third memory unit 36 is a register of the CPU, but the present invention is not limited thereto.

The torque limit value setting unit 30 obtains the retainer code corresponding to each T-code from the second memory unit according to each T-code, and obtains the torque limit value corresponding to the retainer code from the first memory unit 34 according to the obtained retainer code. The torque limit value setting unit 30 stores the obtained torque limit value in the third memory unit 36 after matching it with the T-code. More specifically, as shown in FIG. 7 , the torque limit value setting unit 30 sets the obtained torque limit value in sequence in the register serving as the third memory unit 36 according to the T-code sequence (T20 to T29).

Furthermore, when executing the machining formula, the torque limit value setting unit 30 obtains the torque limit value from the third memory unit 36 in such a manner that the predetermined tool 12 is selected according to the tool selection code T-code recorded in the machining formula. The motor control unit 26 controls the machining of the workpiece W by the tool 12 within the range of the appropriate machining torque that does not exceed the torque limit value according to the obtained torque limit value.

Hereinafter, an example of the operation in the automatic lathe 1 equipped with the torque limit value setting device 4 in the second embodiment will be described with reference to the flowchart of Fig. 8. In the second embodiment, the holder information table 34a of the first memory section 34 also pre-stores: the holder codes of the plurality of tool holders 11 that can be mounted on the turntable surface 10, and the torque limit values of the tool holders 11 corresponding to the respective holder codes.

Furthermore, a worker or the like installs a tool 12 necessary for processing on each turntable surface 10 of the turntable 8 by interposing a predetermined tool holder 11 therebetween.

When the operator or the like operates the operation panel 20 to instruct the control device 3 to display the tool holder selection screen 40, in step S20, the screen display unit 31 receiving the instruction displays the tool holder selection screen 40 on the monitor 22. In step S21, the contact unit 32 obtains the combination of the T-code and the holder code set in the tool holder selection screen 40, and stores it in the processing data table 35a of the second memory unit 35 in step S22.

Next, in step S23, the torque limit value setting unit 30 obtains all combinations of T-codes and retainer codes from the second memory unit 35, and obtains the torque limit value corresponding to the T-code from the first memory unit 34 according to the retainer code of each combination. Next, in step S24, the torque limit value setting unit 30 associates each obtained torque limit value with the T-code and stores it in the third memory unit 36 (see FIG. 7 ).

Next, in step S25, the control device 3 starts executing the machining formula in the same manner as in the first embodiment. In step S26, the control device 3 reads the T-code of the turntable surface 10 from the machining formula by means of the selection instruction (command code) of the predetermined tool 12 to be used during machining. Thus, in step S27, the motor control unit 26 drives the turntable rotation motor 15 according to the T-code, and by obtaining the turntable surface 10, the tool 12 is also obtained. In the example of FIG. 7, the turntable surface 10 corresponding to the T-code "T21" is obtained, and by means of the deviation value of the deviation code specified together with T21 and the correction value of the coordinate correction value code, it is obtained that the tool 12 is installed on the turntable surface 10 through the tool holder 11.

In step S28, the torque limit value setting unit 30 obtains the torque limit value corresponding to the T-code from the third memory unit 36 and transmits it to the motor control unit 26. In the example shown in FIG. 7, the torque limit value setting unit 30 obtains the torque limit value "400%" corresponding to the T-code "T21", transmits it to the motor control unit 26, and writes "400" to the address "#12345" on the memory.

In step S29, the motor control unit 26 reads the torque limit parameter "400" from the address "#12345" and receives it as the torque limit value from the torque limit value setting unit 30. The motor control unit 26 controls the drive mechanism 17 so that the tool 12 processes the workpiece W according to the appropriate processing torque that does not exceed the torque limit value.

As described above, according to the first and second embodiments, when the predetermined tool 12 is selected by the T-code (turret surface code) of the installed turret 8, the torque limit value setting unit 30 obtains the holder code (tool holder code) corresponding to the T-code from the second memory unit 35 based on the T-code (turret surface code) of the tool selection code recorded in the processing formula. The torque limit value setting unit 30 obtains the torque limit value corresponding to the holder code from the first memory unit according to the obtained holder code.

Therefore, in the first and second embodiments, the tool 12 installed on the turntable surface 10 that clamps the tool holder 11 can be easily and freely selected by executing the machining formula while obtaining the turntable surface 10 according to the T-code recorded in the machining formula. Furthermore, according to the T-code, the torque limit value corresponding to the selected tool 12 can be easily and appropriately obtained and transmitted to the motor control unit 26 (control unit). In addition, even if the tool holder 11 installed on the turntable surface 10 has been changed, the appropriate torque limit value corresponding to the changed tool holder 11 can be obtained by updating the second memory unit 35. From the above, based on the T-code (turntable surface code) recorded in the processing formula, a torque limit value setting device 4 can be provided that can easily and appropriately set the torque limit value for the tool 12 that has been installed on the turntable surface 10 corresponding to the T-code with the tool holder 11.

In the first and second embodiments, the automatic lathe 1 as the machine tool selects the tool 12 mounted on the turret surface 10 by interposing the tool holder 11, based on the T-code (turret surface code) recorded in the processing formula. The motor control unit 26 (control unit) controls the processing performed by the tool 12 based on the T-code and the torque limit value set by the torque limit value setting device 4. Thereby, the processing performed by the tool can be easily and appropriately performed within the range of the appropriate processing torque that does not exceed the torque limit value.

Furthermore, in the above-mentioned first and second embodiments, the torque limit value setting device 4 serving as a tool information setting device comprises: a screen display unit 31 and a connection unit 32, wherein the screen display unit 31 displays a tool holder selection screen 40 for selecting the tool holder 11 to be installed on the turntable surface 10 on the monitor 22 (display unit); the connection unit 32 is used to match the holder code (tool holder code) of the tool holder 11 selected on the tool holder selection screen 40 with the T-code (turntable surface code) of the turntable surface 10 and store it in the first memory unit 34.

Thus, the operator can more easily and freely select the tool 12 mounted on each turntable surface 10 through the tool holder 11. Furthermore, the connection unit 32 stores the torque limit value corresponding to the tool holder 11 of the selected tool 12 in the first memory unit 34, and the torque limit value setting unit 30 can set an appropriate torque limit value for the tool 12 of the tool holder 11.

Furthermore, in the second embodiment, the torque limit value setting device 4 includes a third memory unit 36 for storing the torque limit value after matching each T-code (turntable surface code) of the plurality of turntable surfaces 10. The torque limit value setting unit 30 obtains the combination of the T-code (turntable surface code) and the holder code (tool holder code) from the second memory unit 35, and obtains the torque limit value from the first memory unit 34 according to the holder code (tool holder code) of each combination. The torque limit value setting unit 30 stores each of the obtained torque limit values in the third memory unit 36 after matching each of the T-code (turntable surface code). Then, the torque limit value setting unit 30 obtains the torque limit value from the third memory unit 36 according to the T-code (rotary table code) recorded in the machining formula.

In this way, the torque limit value can be set for the tool 12 installed on the turret 10 more quickly and efficiently according to the T-code (turret code), thereby speeding up the execution speed of the processing and improving the processing efficiency.

Furthermore, in the embodiment of the present disclosure, although the example of setting the corresponding torque limit value to the retainer code is explained, the retainer code can be set not limited to the torque limit value. For example, the distance (position information) from the tip of the tool 12 set on the turntable surface 10 with the predetermined tool holder 11 to the workpiece W on each axis (X axis, Y axis, Z axis) can be set as the tool information ("core", "diameter", "length"). The third embodiment using "core", "diameter", and "length" as the tool information is explained below.

(Third embodiment) The following describes the automatic lathe as a machine tool equipped with a tool information setting device in the third embodiment, with reference to FIG. 3. The tool information setting device 4 and the automatic lathe 1 in the third embodiment have the same basic structure as the first and second embodiments shown in FIG. 3, except that the tool information setting device (torque limit value setting device) 4 shown in FIG. 3 functions as a position information setting device and the torque limit value setting unit 30 functions as a position information setting unit. Therefore, the following mainly describes the structure that is different from the first and second embodiments, and the detailed description of the structure that is the same as the first and second embodiments is omitted.

The tool information in the third embodiment is the position information of the tool 12. Specifically, for example, when the tool 12 is used to process the workpiece W held by the spindle 5, the three-dimensional position information of "core", "diameter", and "length" is used to set the coordinate position of the tool tip of the tool 12 used in the outer cutting or inner diameter cutting. "Core" is the X-axis coordinate position in the X direction when the tool tip abuts the workpiece W by moving the tool 12 on the tool stand, etc. "Diameter" is the Y-axis coordinate position of the tool tip of the tool 12 in the Y direction under the same circumstances. "Length" is the Z-axis coordinate position of the tool tip in the Z direction relative to the end face position of the workpiece W. By setting these three tool information, the position coordinates of the processing point where the workpiece W is to be processed can be set.

FIG. 9 is a diagram showing the relationship between the table structure of the database stored in the first memory unit 34 and the second memory unit 35 in the third embodiment and the T-code of the processing formula. As shown in FIG. 9, the first memory unit 34 stores the holder codes of the plurality of tool holders 11 that can be mounted on each turntable surface 10, and the holder information table 34a corresponding to the position information (X-axis coordinate position of "core", Y-axis coordinate position of "diameter", and Z-axis coordinate position of "length") of the tool tip (processing point) of the tool 12 as tool information. The second memory section 35 stores a processing data table 35a, which is set by associating T-codes with the tool holder codes of the tool holders 11 installed on the turntable surface 10 corresponding to the respective T-codes. Such data can be set in the same screen and in the same order as in the first and second embodiments.

While rereading the flowchart of FIG. 6, an example of the operation of the automatic lathe 1 having the tool information setting device 4 as the position information setting device in the third embodiment is explained. Here, in the holder information table 34a of the first memory unit 34, the holder codes of the plurality of tool holders 11 that can be installed on the turntable surface 10 and the position information (tool information) of the tool holder 11 corresponding to each holder code are pre-stored. In addition, the operator inserts the predetermined tool holder 11 to install the tool 12 on each turntable surface 10 of the turntable 8, and operates the operation panel 20 to instruct the control device 3 to display the tool holder selection screen 40.

When receiving the instruction, in step S1, the screen display unit 31 displays the tool holder selection screen 40 on the monitor 22. Next, in step S2, the contact unit 32 obtains the combination of the turntable surface code and the holder code set by the operator on the tool holder selection screen 40, and stores it in the processing data table 35a of the second memory unit 35 in step S3.

Next, in step S4, the control device 3 receives a machining start instruction from the operator, etc., and starts executing the machining formula in the machining formula storage unit 25. In step S5, the control device 3 reads the T-code of the turntable surface 10 according to the selection instruction of the tool 12, and in step S6, the motor control unit 26 drives the turntable rotation motor 15 to obtain the turntable surface 10.

Next, in step S7, the torque limit value setting unit 30, which functions as the position information setting unit, obtains the retainer code corresponding to the T-code from the processing data table 35a of the second memory unit 35. In the example of FIG. 9, for example, the position information setting unit obtains "ESS987" corresponding to "T21". Next, based on the retainer code, the position information setting unit obtains the tool information (position information) corresponding to the retainer code from the retainer information table 34a of the first memory unit 34 in step S8, and transmits it to the motor control unit 26. In the example of FIG. 9, the position information setting unit obtains the position information "x4, y4, z4", and writes "x4, y4, z4" (tool information parameter) to the address "#12345" on the memory.

In step S9, the motor control unit 26 controls the drive mechanism 17 to position the tool tip (processing point) of the tool 12 based on the tool information parameter "x4, y4, z4" read from the address "#12345".

As described above, in the third embodiment, the tool information setting device 4 as the position information setting device sets the holder code and the information of "core", "diameter" and "length" as tool information of the tool 12 set in the tool holder 11 to each tool holder 11, similarly to the setting of the torque limit value in the first and second embodiments. Thereby, when the tool 12 is replaced (replaced) from the predetermined turntable surface 10 to another turntable surface 10 one by one according to the tool holder 11, the code of the replaced turntable surface is changed. Therefore, it is easy to change the setting of the tool information (position information of the tool tip) when the tool is replaced.

Although the embodiments of the present disclosure are described in detail with reference to the drawings, the embodiments described above are merely examples of the present disclosure, and the present disclosure is not limited to the configuration of the embodiments described above. Even design changes that do not exceed the scope of the essential gist of the present disclosure are also included in the present disclosure.

For example, in each of the above embodiments, although the tool stand for setting the tool 12 or the tool holder 11 is described as a turntable, it is not limited to this, and the tool holder or tool set on the tool stand can also be applied to the present disclosure. [Cross-reference to related applications]

The present invention claims priority based on Japanese Patent Application No. 2019-136800 filed with the Japan Patent Office on July 25, 2019, the entire disclosure of which is incorporated herein by reference.

1: Automatic lathe 2: Processing body 3: Control device 4: Torque limit value setting device (tool information setting device) 5: Spindle 6: Rotary tool table 7: Tool table body 8: Rotary table 10: Rotary table surface 11: Tool holder 12: Tool 13: Spindle motor 14: Rotary table moving motor 15: Rotary table rotating motor 16: Tool driving motor 17: Driving mechanism 20: Operation panel 21: Various switches 22: Monitor 23: Menu bar 24: Menu switch 25: Processing method storage section 26 : Motor control unit 30: Torque limit value setting unit 31: Screen display unit 32: Contact unit 33: Memory unit 34: 1st memory unit 34a: Holder information table 35: 2nd memory unit 35a: Processing data table 36: 3rd memory unit 40: Tool holder selection screen 41: T-code display area 42: Holder selection area 43: Holder information display area 44: Menu bar C: Center axis of rotary table tool holder 6 C0: Axis of spindle 5 T21~T30: Rotary table surface code W: Workpiece

[Figure 1] is a schematic perspective view showing a turret tool rest of an automatic lathe having a torque limit value setting device in the first embodiment. [Figure 2] is a schematic plan view of the turret, and shows: the relationship between the turret surface and the turret surface code, and the relationship between each turret surface and the tool holder installed on the turret surface and the tool installed on the tool holder. [Figure 3] is a functional block diagram of a control device having a torque limit value setting device (tool information setting device). [Figure 4] is a diagram showing the relationship between the table structure of the database stored in the first memory unit and the second memory unit in the first embodiment and the T-code of the processing formula. [Figure 5] is a diagram showing a tool holder selection screen. [Figure 6] is a flowchart showing an example of the operation of an automatic lathe equipped with a torque limit value setting device of the first embodiment. [Figure 7] is a diagram showing the relationship between the table structure of the database stored in the first memory unit, the second memory unit, and the third memory unit in the second embodiment and the T-code of the processing formula. [Figure 8] is a flowchart showing an example of the operation of an automatic lathe equipped with a torque limit value setting device of the second embodiment. [Figure 9] is a diagram showing the relationship between the table structure of the database stored in the first memory unit, the second memory unit, and the third memory unit in the third embodiment and the T-code of the processing formula.

3: Control device

4: Torque limit value setting device (tool information setting device)

13: Spindle motor

14: Motor for moving the turntable

15: Turntable rotation motor

16: Tool drive motor

17: Driving mechanism

20: Operation panel

21: Various switches

22: Monitor

23: Menu bar

24: Menu switch

25: Processing storage department

26: Motor control unit

30: Torque limit value setting unit

31: Screen display unit

32: Contact Department

33: Memory Department

34: Memory Section 1

35: Memory Section 2

36: Memory Section 3

Claims (6)

A tool information setting device is used to set the tool information of tools installed by various tool holders for processing on each of the multiple turntable surfaces provided on the periphery of the turntable, and is characterized by having: a first memory unit, which stores a tool holder code for identifying the above-mentioned tool holder and the tool information of the above-mentioned tool to be installed on the corresponding above-mentioned tool holder; and a second memory unit, which stores a turntable surface code for identifying the above-mentioned turntable surface and the corresponding tool information to be installed on the above-mentioned turntable. The tool holder code of the tool holder on the surface; and a tool information setting unit, which, when the motor control unit of the control device selects the predetermined tool by the turntable code of the installed turntable surface, obtains the tool holder code from the second memory unit according to the turntable code recorded in the processing formula, obtains the tool information of the tool from the first memory unit according to the obtained tool holder code, and sends the obtained tool information to the motor control unit. The tool information setting device as described in claim 1, wherein the device comprises: a third memory unit, which stores the tool information of the tool after matching each turntable code of the plurality of turntables; the tool information setting unit obtains the combination of the turntable code and the tool holder code from the second memory unit, obtains the tool information from the first memory unit according to the tool holder code of each combination, matches each obtained tool information with the turntable code, stores it in the third memory unit first, and obtains the tool information from the third memory unit according to the turntable code recorded in the processing formula. The tool information setting device as described in claim 1, wherein the device comprises: a screen display unit, which displays a tool holder selection screen for selecting the tool holder to be installed on the turntable surface; and a linking unit, which associates the tool holder code of the tool holder selected on the tool holder selection screen with the turntable surface code and stores it in the second memory unit. A tool information setting device as described in claim 1, wherein the tool information is a torque limit value of the machining torque of the tool. The tool information setting device as described in claim 1, wherein the tool information is the location information of the tool. A machine tool is a machine tool that sets a turntable surface code for each of a plurality of turntable surfaces provided on the circumference of a turntable, obtains the turntable surface and selects the tool by specifying the turntable surface code on which the tool is installed by a tool holder, and processes a workpiece by the selected tool. The machine tool is characterized by having: a tool information setting device as described in any one of claim items 1 to 5, and a control unit that obtains the turntable surface according to the turntable surface code recorded in a processing formula, selects the tool installed on the turntable surface by the tool holder, and controls the processing performed by the tool according to the turntable surface code and the tool information set by the tool information setting device.

Images